ICD-10 · PDGM grouping
H34 Retinal vascular occlusions
All 45 codes in the H34 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
ICD-10-CM FY2027 · CMS grouper v07.2.26
Codes in family
45
Can lead a claim
34
Cannot lead a claim
11
What CMS assigns to H34
34 of the 45 codes group to MMTA - Other; 11 are assigned no clinical group. None of the 45 is assigned a comorbidity subgroup. 34 of the 45 can lead a claim.
Every code in H34
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| H34.0 Transient retinal artery occlusion | ||||
| H34.00 | Transient retinal artery occlusion, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.01 | Transient retinal artery occlusion, right eye | Can lead a claim | A | None |
| H34.02 | Transient retinal artery occlusion, left eye | Can lead a claim | A | None |
| H34.03 | Transient retinal artery occlusion, bilateral | Can lead a claim | A | None |
| H34.1 Central retinal artery occlusion | ||||
| H34.10 | Central retinal artery occlusion, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.11 | Central retinal artery occlusion, right eye | Can lead a claim | A | None |
| H34.12 | Central retinal artery occlusion, left eye | Can lead a claim | A | None |
| H34.13 | Central retinal artery occlusion, bilateral | Can lead a claim | A | None |
| H34.2 Other retinal artery occlusions | ||||
| H34.21 Partial retinal artery occlusion | ||||
| H34.211 | Partial retinal artery occlusion, right eye | Can lead a claim | A | None |
| H34.212 | Partial retinal artery occlusion, left eye | Can lead a claim | A | None |
| H34.213 | Partial retinal artery occlusion, bilateral | Can lead a claim | A | None |
| H34.219 | Partial retinal artery occlusion, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.23 Retinal artery branch occlusion | ||||
| H34.231 | Retinal artery branch occlusion, right eye | Can lead a claim | A | None |
| H34.232 | Retinal artery branch occlusion, left eye | Can lead a claim | A | None |
| H34.233 | Retinal artery branch occlusion, bilateral | Can lead a claim | A | None |
| H34.239 | Retinal artery branch occlusion, unspecified eye | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.8 Other retinal vascular occlusions | ||||
| H34.81 Central retinal vein occlusion | ||||
| H34.811 Central retinal vein occlusion, right eye | ||||
| H34.8110 | Central retinal vein occlusion, right eye, with macular edemaCMS: Central retinal vein occls, right eye, with macular edema | Can lead a claim | A | None |
| H34.8111 | Central retinal vein occlusion, right eye, with retinal neovascularizationCMS: Central retinal vein occlusion, right eye, w rtnl neovas | Can lead a claim | A | None |
| H34.8112 | Central retinal vein occlusion, right eye, stable | Can lead a claim | A | None |
| H34.812 Central retinal vein occlusion, left eye | ||||
| H34.8120 | Central retinal vein occlusion, left eye, with macular edema | Can lead a claim | A | None |
| H34.8121 | Central retinal vein occlusion, left eye, with retinal neovascularizationCMS: Central retinal vein occlusion, left eye, w rtnl neovas | Can lead a claim | A | None |
| H34.8122 | Central retinal vein occlusion, left eye, stable | Can lead a claim | A | None |
| H34.813 Central retinal vein occlusion, bilateral | ||||
| H34.8130 | Central retinal vein occlusion, bilateral, with macular edemaCMS: Central retinal vein occlusion, bi, with macular edema | Can lead a claim | A | None |
| H34.8131 | Central retinal vein occlusion, bilateral, with retinal neovascularizationCMS: Central retinal vein occlusion, bilateral, w rtnl neovas | Can lead a claim | A | None |
| H34.8132 | Central retinal vein occlusion, bilateral, stable | Can lead a claim | A | None |
| H34.819 Central retinal vein occlusion, unspecified eye | ||||
| H34.8190 | Central retinal vein occlusion, unspecified eye, with macular edemaCMS: Central retinal vein occlusion, unsp, with macular edema | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.8191 | Central retinal vein occlusion, unspecified eye, with retinal neovascularizationCMS: Central retinal vein occlusion, unsp, w rtnl neovas | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.8192 | Central retinal vein occlusion, unspecified eye, stable | Cannot lead a claimUnspecified diagnosis code not acceptable as principal diagnosis since there is a more specific code available that would further accurately identify the condition | None | None |
| H34.82 Venous engorgement | ||||
| H34.821 | Venous engorgement, right eye | Can lead a claim | A | None |
| H34.822 | Venous engorgement, left eye | Can lead a claim | A | None |
| H34.823 | Venous engorgement, bilateral | Can lead a claim | A | None |
| H34.829 | Venous engorgement, unspecified eye | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H34.83 Tributary (branch) retinal vein occlusion | ||||
| H34.831 Tributary (branch) retinal vein occlusion, right eye | ||||
| H34.8310 | Tributary (branch) retinal vein occlusion, right eye, with macular edemaCMS: Trib rtnl vein occlusion, right eye, with macular edema | Can lead a claim | A | None |
| H34.8311 | Tributary (branch) retinal vein occlusion, right eye, with retinal neovascularizationCMS: Trib rtnl vein occlusion, right eye, w rtnl neovas | Can lead a claim | A | None |
| H34.8312 | Tributary (branch) retinal vein occlusion, right eye, stable | Can lead a claim | A | None |
| H34.832 Tributary (branch) retinal vein occlusion, left eye | ||||
| H34.8320 | Tributary (branch) retinal vein occlusion, left eye, with macular edemaCMS: Trib rtnl vein occlusion, left eye, with macular edema | Can lead a claim | A | None |
| H34.8321 | Tributary (branch) retinal vein occlusion, left eye, with retinal neovascularizationCMS: Trib rtnl vein occlusion, left eye, w rtnl neovas | Can lead a claim | A | None |
| H34.8322 | Tributary (branch) retinal vein occlusion, left eye, stable | Can lead a claim | A | None |
| H34.833 Tributary (branch) retinal vein occlusion, bilateral | ||||
| H34.8330 | Tributary (branch) retinal vein occlusion, bilateral, with macular edemaCMS: Trib rtnl vein occlusion, bilateral, with macular edema | Can lead a claim | A | None |
| H34.8331 | Tributary (branch) retinal vein occlusion, bilateral, with retinal neovascularizationCMS: Trib rtnl vein occlusion, bilateral, w rtnl neovas | Can lead a claim | A | None |
| H34.8332 | Tributary (branch) retinal vein occlusion, bilateral, stable | Can lead a claim | A | None |
| H34.839 Tributary (branch) retinal vein occlusion, unspecified eye | ||||
| H34.8390 | Tributary (branch) retinal vein occlusion, unspecified eye, with macular edemaCMS: Trib rtnl vein occlusion, unsp, with macular edema | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H34.8391 | Tributary (branch) retinal vein occlusion, unspecified eye, with retinal neovascularizationCMS: Trib rtnl vein occlusion, unspecified eye, w rtnl neovas | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H34.8392 | Tributary (branch) retinal vein occlusion, unspecified eye, stableCMS: Trib rtnl vein occlusion, unspecified eye, stable | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
| H34.9 | Unspecified retinal vascular occlusion | Can lead a claim | A | None |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
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